Clutch and control mechanism



Aug. 21,1928. 1,681,384

H. H. WATERS CLUTCH AND 'CONTROL MECHANISH .Fi'ld April 25.4 1927 4Sheets-$11061'. 1

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Aug. 21,' 192s. 1,681,384

H. H. WATERS y CLUTCH AND CONTROL MECHANISM Filed April 25. 1927 4sheets-sheet 2 by, N

Aug. 21, 192s.

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Aug.z1, 192s. 1,681,384

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CLUTCH AND CONTROL ucmmsu Filed April 25, 1927 4 Sheets-Sheet 4 E DEQflarmj HP1/ters @Mmm Patented Aug.21,i192s.

" UNITED STATES Y `1,6s1',f3s4` y PATENT OFFICE.

HARRY n.- wA'rlma, lor' cLnrroN, IowA, AssIGNon-ro cLmAz cuentame,courm, A oonronArroN .or DELAWARE.

cnrx'rcrrl ,Ama coNrnoI. IEciiAmsu.

Application mea April as, 1927. serai no. .186394.

clutches and the control mechanism therefor,

and more particularly to the control mechanism for a reversing clutchfor planetary reversing pulle s, transmission or hoistin drums or theike, whereby forward, neutra and reverse clutches and brakes areoperated under unitary 'controlby a series of cams so located that thevarious operations, includin free operation of the drum, are performeautomaticall and in the proper synchronism,

thereby eliminating the use of the heretofore known conventional methodsof control emp ploying bell cranks, links and the like, which previouslknown methods were accompanied by objectionable lost motion,non-'dependability, and waste space.- 5

In the present construction I have embodied the improved neutral brakeconstruction shown and described in my U. S. Letters .Patent N o.1,619,449, granted tome on March l, 1927, said construction having beenfound to serve admirably in the improved combination provided herein.

It is an objectof this invention to provide improvements in reversingtransmissions, clutch pulleys, hoisting orcable drums or the like inwhich forward motionis obtained by means of a clutch, and reverse motionthroug planetary gears by clamping the spider supporting these gears,which improvement consists in actuating the forward, neutral andreversin clutches or brakes with the aid of a single ever and camshaft,thereby permitting an operator to control all of the operai' `tions withminimum exertion on the single lever and` with a reasonabjlg shorttravel of` y the lever.

It is a further ob'ect of this linvention to provide a device of t eclass described having automatic locking means for quickly stopping thedrum and holding the same in stopped positionif desiredmmediately afterthe release of the forward driving clutch.

A further object of this invention is to provide a device of the classdescribed in which yall of the clutches or brakes are operated by cams,individual to each, the cams being properly timed so that there 'will beno overlaping of action and providing a short interval tween the variouspositions and operations where all brakes land clutches will bedisenaged. y

A still further object of this invention is to provide eilicient andautomatic means for y brake actuating means.

special precautions being taken against the leakage of the same. A Otherand further important objects of this Invention will be apparent fromthe disclosures 1n the drawings and specification.

This invention in a preferred form) ,is illustrated in the drawings andhereinafter more fully described. i

O n the drawings: Figure l is a top plan view of a device em-A bolyingfeaturesof this invention. igure 2 is an end view of a device taken fromthe right of Figure- 1. 'v

Figure 3 is a vertical sectional view taken substantially along lineIII--III of Figurel 2. Figure 4 is a view taken substantially along lineIV-IV of Figure 3 showing the clutch actuating means.

Figure 5is a view taken substantially along line V-V of Figure 3 showingthe reverse Figure 6 is a view taken substantially aln line VI-VI ofFigure 3 showing the neutr brake actuating means.

Figure 7 is a sectional view taken substan- 4tially on line VII-VII ofFigure 3.

As shown on the drawings:

. In the illustrated embodiment vof this in ventiom there is shown aself-contained unit or complete jackshaft unit adapted toV be placedbetween the power and the load for the purpose of starting, stoppingandI reversing, and permitting free operation of a driven machine. Ofcourse, the power may betransmitted by belt, chain or -gears as desired.This self-contained lunit comprises a pair of parallel base members 1supportingthere- 95 Y above a pair of end frames 2. Mounted on the endframes 2 are bearings 3 which provide bearing Surfaces for a live shaft4. The shaft 4 extends beyond the-bearings in each direct-ion and at oneend is provided with an outboard pulley wheel, the other end of whichmay be connected toa power source or to a machine to be driven asdesired.

Keyed to the live shaft-4 is 'a flanged hub .'Z, and engageable with theflanges of' this hub 7 105 is a multiplate clutch 8 which is actuated bytoggle mechanism .9, in turn connected to a sleeve 10 free and slidableupon the shaft 4.. The sleevel() has a circumscribing portion 10therearound for a purpose hereinafter de- 11o scribed. A hoist or pulleydrum 11 is loosely mounted on the shaft 4 adjacent thevhub 7, and hasintegral therewith a brake band drum 12 to which is secured a pluralityof pins 13. The clutch 8is slidable longitudinally in the pins 13 andwill rotate therewith. Around the brake band drum 12 is the neutralbrake band 14.

Freely and se arately mounted on the shaft 4 adjacent the rum 11 Vis aspider 15 which carries rotatably mounted thereon bevel pinions 16.Planetary reversing gears are enclosed by the spider 15 and consist ofthe bevel pinions 16 which mesh on one side of the spider '15 with agear 17 carried by the drum 11 and on the other side with a ear 18carried by a sleeve 19 which is keye to the shaft 4. The periphery ofthe spider 15 forms a brake band drum 20 for a reverse brake band 21.

One of the principal feautres of this invention is the unitarilycontrolled mechanism for operating the clutch 8, neutral brake 14 andreverse brake 21. This mechanism includes a camshaft 22 suitablyjournalled'to the endl frames 2 at 23. Secured tothe base members 1 is apair of transverse angle irons 24 which support brackets 25 upon whichare mounted journals 26 for a pivot shaft 27 which is disposed above andto the rear of camshaft 22 as shown in Figures 2 and 3. Loosely mountedupon the ivot shaft 27 adjacent either end thereof are ifurcated levers28 and 29, respectively.

' One end of the reverse brake band 2 1 is secured to the lever 28 at apoint above the shaft 27, and the other end of the brake band is securedto a socket 30 through which a threaded adjustable pull rod 31 passes,which in turn is engaged in a socket 31 connected to the lever 28 at apoint below the shaft 27. Freely suspended between the bifurcations ofthe lower end of the lever 28 is a roller 32 which isadapted to beengaged by a cam 33 ixedly mounted upon the camshaft 22. The neutralbrake band 14 is similarly secured to the lever 29 which also has aroller 32'L freely attached between the bifurcations of its lower endand which is adapted to be en ed by a cam 34 iixedly mounted on the sha22:' The cams 33 and 34 are provided with substantially semi-circularrecesses 33* and 34* respectively, which receive the rollers 32 and 32and provide a locking engagement for their resctive brakes. i

Depen ng from the circums'crbin portion 10 of the sleeve 10. andpivote'd t ereto y at 35 is a clutch shifting fork 36 whiehis pivoted at37 to an adjustably mo stationary 38 secured to one of the end frames 2(Figure 3). Disposed transversely adjacent the lower end of the fork 37isa air-of cam followers 39 for a cam 40 mounte on the camshaft 22. Thiscam 40 is always between the followers 39 and adapted to snaesnee4 gageeither one so as to shift the clutch 8 out or in as the case may be.TheV cam 40 itself is cylindrical and is of the form of a warped diskand so designed that the active part thereof covers only a small portionof its faces adjacent its periphery. v

' The camshaft 22 is controlled and operated by a'lever 41 pivoted at 42to an end rame 2 and having its lower extremity pivoted at 43 to atoothed rack 44 which is adapted to ride on a roller 45 and engage witha spur gear 46 fixedly secured to the end of the camshaft 22. Novellubricating means have been provided for the various parts of thisinvention and include a plurality of ioatino bushings 47 disposedbetween the shaft 4 and the drum 11 (Figure 3). These bushings 47 areprovided with numerous apertures 48 therethrough. A central cavity 49 isprovided within the drum 11, and the interior partition or bearingsurface of the drum is divided into two parts 50 and 51, leaving a slot52 therebetween, which slot establishes communication between the cavity49 and the bushin s 47.

Thecavity 49 also communicates with t e exvterior of the drum 11 througha passage 53 threaded at its outer end to accommodate a screw plug 53.Integral with the bearing Walls 50 and 51 there is provided a pluralityof fins oryanes 54 which extend substantially across the cavity 50 andterminate adjacent the slot -52 on either side thereof. Lubricatinguidis admitted through the passage 53 into the cavity 49 until this cavityis filled substantially half full. The lubricatin fluid reaches thebushings 47 through the sflot 52 and trickles throu' h the apertures 48in the bushings to the s aft 4 thereby providing adequate lubricationfor the shaft. The fins 54 keep a sufficient amount of lubricating fluidretained in the cavity 49, so that if the drum is stopped this retainedlubricating fiuid will gra ually pass through the apertures 48immediately upon starting the drum whereby the shaft will at no time bedevoi of lubrication.

The s ider 15 is also separated from the shaft 4 y a floating bushing 55similar to thebushings 54 and provided with apertures 56 therein'(Figure 3). The spider 15 is rovided with a housin 57 threaround w ichis drilled and threa ed at various points to accommodate screw lugs 58.On the interior of each side of t e housing 57 is an integral upwardlyinclined ring 59 so positioned as to collect oil drip ings or the like.Integral with the gears 17)and 18 are rings 60 and 61,- frespective1v,so positioned that they extend outwardly substantially over the edgeof'the rings 59 whereby any drippin of lubricating fluid from the rings60 ansl, respective y, will be caught bythe rin 59. -A plurality ofpassages 62 are provid through the central portion of the spider 15communicating at one end with a cavity 63 adjacent the bushing 55, andat the other end with passages 64 leading into the interior of thehousin 57. Lubricating fluid is laced in both si es of the housing 57-throug the openings in which the screw plugs 58 are engageable, and isthrown outwardly towards .the rim' of ythe spider 15 b centrifugal forcedue to the vrotation of t e spider.

The ,outwar'dl thrown fluid will thereby. provide effective lubricationvfor the bevel pinions 16 and the gears 17 and 18, and a goodlyportionof this uid enters the passa e 62 through the passages 64, passes Into te cavity 63, and from this cavitytrickles through the apertures 56 tothe shaft 4. lWhen thespider is materially slowed down or stopped thefluid in the upper half thereof will be caught bythe rings and 61, andthe drippingsfrom theserings will be caught by the rings 59 thereby pre-4 inthe saine direction. Assuming now itis' desired to reverse 'therotation of the drum 11, the live shaft 4, of course, will continue torotate in its former direction, the lever 41, as shown in Figure 2, is`ulled to the right, the rack 44 engaging with the spur gear 46 to rotatethe'camshaft 22 and the cams 33, 34 and 40 fixed thereon'.l As the leveris pulled back the warped disk cam 40 en ages with the .inner of the twofollowers 39 t ereby disengaging the clutch 8 from the vflanged sleeve7.

. At ythis moment the clutch `and both brake drum 11.

bands are in disengaged ,position but upon slight movement thereafterthe cam 34 abuts the roller 32 and actuates the neutral brake band 14 touickly stop the rotation of the en the small semi-circular recess 34engages with the roller 32, the neutral brake band' 14 is securelyholdin the drum 11.in stationary sition. Upon s ight movement thereaftert e recess .34passes they roller 32'l and the neutral brake band 14 isreleased leaving the clutch and both braker bands again in freeposition. After this second free position of theclutch and brakes ythecam ,33 engages withth'e roller 32 on the vlever 28. thereby tighteningthe reverse brakev band'21. After 't e free position has been f passed,thefrecessin the cam 33 en a es the roller 32 and/retains the reverse rae band 21..in=1ocked position to thereby hold the s ider 1.5-sta'tionary, Thef1ever41willin itsoutermost position.v Simulta-f nowneously with the linkin of ai@ mme brake band 21, the shaft 4, ocourse,` in the mean-4 time continuing to rotate in the same'direc-4tion, the drum 11 actuated by Ithe shaft through the sleeve 19 keyedthereto and the planetary reversing gears 18, 16 and 17,respectively,`will start rotating in a direction oposite to that of theshaft.

bviously, when the lever l41 is againv pushed inwardly, the abovedescribed opera- `tions occur in the reverse order, namely: the

reverse brake band 21 is released, a free position is reached, theneutral brake band 14 is tightened thereby stopping rotation of thedrum, a second free position is reached, after which the clutch 8 isengaged with the lianged shaft in the same direction.

When the device is' to be left stationa 8 will then be oiit and therecess 34 in the cam 34 engaged with roller 32a thereby holding theneutral brake band 1.4 'in locked position, and the reverse brake band21 will be in disengaged position.

The control mechanism itself affords a greatly simplifiedstructure andis readily ad- ]ustable for the correct timing of the operations and `tosuit the operating conditions.

The cams, of course, are so adjusted that the sleeve 7 and the drum willthen rotate with the the ,lever-41 is placed in mid-position. Theo utch'operations are performed automatically and y in proper synchronism witha minimum oscillation on the camshaft, which, of course, is oscillatedby little exertion upon the actuating lever.` The device as a wholeincluding the drum and all actuating mechanism therefor is aself-contained unit eiliciently and 'automatically lubricated, easilycontrolled by the manual operation of a single lever and whichispositive in its action. Itis obvious also thatthe device is sim le inconstruction affording ready access to a the arts, is very durable andma be economica 1y manufactured and assem led.

I amaware that man changes may be` made and numerous deta ofconstruction may be varied through a wide ran e without departin fromthe principles of t is invention andi therefore, do not pur se limitingthe patent 'anted hereon, ot erwisel than necessitated' y .tliepriorart.

I claim as my' invention:

v f 1.. In a self contained reversing pulley unit,

a clutch, a neutral brake, a ,reversing brake, a cam associated witheach, and unitary means for o rat-ingsaid clutch and brakes.

2. v reversible drum unitorthe like including a clutch, la neutralbrake, a reversin brake, acain associated with each and adapte tocontrolth'e o eration thereof and means for simultaneous y actuatingsaid cams.

3. In a"transmission'z a shaft, a drum there on, 'a clutch between saidshaft and drum, and

meansincluding a cam for actuating'said f clutch,

y 4. Control mechanism for a reversing ing transmission mcludin a camshaft, cams thereon engageable with individual elements of saidtransmission, a lever ada ted to operate said cam shaft, and toothemeans connectin said shaft and lever.

7 nitary control mechanism for a reversing mechanism including a controlshaft, controls thereon engageable with the elements of saidtransmission, a control lever for said shaft, and toothed meansconnecting said shaft and lever.

8. Control mechanism for a reversing I mechanismv comprising a shaft,members thereon engageable withelements of said reversing mechanism, agear on said shaft, a roller a rack rideable on said roller andengageable with said gear, and an actuating lever for 'saidrack l 9. Ina device of the ,class described including a shaft, a drum thereon, aclutch between said shaft and drum, a fork pivoted to said clutch, apair of followers on the other end of said fork, and a cam engageablewith said followers to actuate lsaid c utch.

ends ofeach brake being connected to one of said levers, and means foractuating said levers.

1,1. In a device of the class described 1ncluding forward, reverse andneutral braking mechanismsna cam for actuating each of sai f mechanisms,and aunitary control for said cams.

12. In a reversing transmission, a live shaft, a drum thereon, a forwarddrive clutch a neutral brake, a reversing brake, a secon shaft, leverspivoted on said second shaft, the ends of each of said brakes beingsecured to one of said levers, a pair of followers connected to saidclutch, a cam shaft, cams fixed thereon en aging said levers andfollowers for controllmg and actuating said transmission, and a leveroperatively connected to said shaft for operating the same.

13. Inv a reversing transmission including neutral and reversing brakesa ivot shaft, levers ivotal thereon, the en o the neutral brake andbeing secured to one of said levers above and below the pivot pointthereof, the reversing brake band similarly secured to the otherbf saidlevers, and control means for said levers to operate them in propersequence.

In testimony whereof I have hereunto sub: scribed my name at Clinton,Clinton County,

Iowa.l f

' HARRY H. WATERS.

